Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2010-07-02
2011-10-04
Redding, David A (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S320000, C015S322000, C015S416000, C015S419000
Reexamination Certificate
active
08028370
ABSTRACT:
A cleaning machine for cleaning a surface is provided. The cleaning machine includes a base assembly that moves along the surface and a liquid distribution system associated with the base assembly for distributing the cleaning solution to the cleaning surface. A suction nozzle assembly is mounted to the base assembly and includes a front nozzle portion and a rear nozzle portion. The front nozzle portion defines a fluid flow path having an inlet opening and an outlet opening and the rear nozzle portion defines a fluid flow path having an inlet opening and an outlet opening. A suction source is in fluid communication with the suction nozzle for applying suction to draw the cleaning solution and dirt from the surface and through the suction nozzle assembly. The fluid flow path of the front nozzle portion is closed in response to the base assembly moving in one of the forward direction and rear direction. The fluid flow path of the rear nozzle portion is closed in response to the base assembly moving in other one of the forward and rear direction.
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Bauman Robert W.
Durbin Michael A.
Gordon Evan A.
Makarov Sergey V.
Tondra Aaron P.
Michael & Best & Friedrich LLP
Redding David A
Techtronic Floor Care Technology Limited
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